neutrophils and PERCOLL

Hello,
thanks to everyone who helped me with my last problem, but now I have an
other one:
How can I seperate neutrophils from PBMC's by the Percoll-Technique
without "loosing" them? Everytime I tried it, the cells clumped and I
was unable to redisolve them. Where can I get a proper method for
seperating neutrophils with Percoll?
Thank you for any help, Christian